ASA Electronics MS-407 - Manual (Page 7)

CARE & MAINTENANCE
Cassette
Always check that the tape is tightly wound inside the take-up
spool on the cassette. If the tape is loose, wind it with a six-sided
pencil. Never use C-120 (120 minute) cassettes in this player.
Never use cassette player when the vehicle temperature is near
or below freezing.
Cleaning of Tape Head & Capstan
Since tapes contain oxides, you will find a black residue builds up
on the head and drive capstan (inside cassette door). These
residues should be cleaned after 50-100 hours of accumulated
tape operation. You can use a cassette cleaning cartridge
available whereever stereos are sold.
DE-MAGNITIZING
The movement of the magnetic tape across the tape head and
metal parts causes a magnetic field to develop. We recommend
you have the tape player demagnetized at least twice annually.
You can purchase an inexpensive tape head demagnetizing tool
to do this yourself.
SPECIFICATIONS
Size: 7” (W) x 2” (H) x 6 5/8” (D)
178mm x 50mm x 168mm
Operating Voltage: 12V DC, Negative ground
Output Power:
50 Watts max. Stereo power
Output Wiring: Floating ground type designed
for 4 speaker use. May also be
used with 2 speakers.
Output Impedance: Compatible with 4 or 8
Ω
speakers
Tuning range: (AM) 530 – 1710 KHz
(FM) 88 – 108 MHz
(Weather band)
Ch 1- 162.550 MHz
Ch 2- 162.400 MHz
Ch 3- 162.475 KHz
Sensitivity: (AM) less than 25uV
(FM) less than 5uV
FM Stereo Separation: More than 23 dB
Frequency Response: 50 –10000 Hz
Wow & Flutter: Less than 0.3%
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